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53 lines
1.8 KiB
53 lines
1.8 KiB
2 years ago
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commit c22c3dee4bbf4a99b234307c63e4845052a15890
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Author: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
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Date: Thu Sep 21 22:03:59 2017 +0000
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* config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash):
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Fix dump output if the only stack space is for pushed registers.
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* lib/target-supports.exp
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(check_effective_target_frame_pointer_for_non_leaf): Add
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case for x86 Solaris.
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@253082 138bc75d-0d04-0410-961f-82ee72b054a4
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diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
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index a9072f58f50..d8a225195ae 100644
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--- a/gcc/config/i386/i386.c
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+++ b/gcc/config/i386/i386.c
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@@ -9856,7 +9856,16 @@ ix86_adjust_stack_and_probe_stack_clash (const HOST_WIDE_INT size)
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no probes are needed. */
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if (!size)
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{
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- dump_stack_clash_frame_info (NO_PROBE_NO_FRAME, false);
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+ struct ix86_frame frame;
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+ ix86_compute_frame_layout (&frame);
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+
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+ /* However, the allocation of space via pushes for register
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+ saves could be viewed as allocating space, but without the
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+ need to probe. */
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+ if (frame.nregs || frame.nsseregs || frame_pointer_needed)
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+ dump_stack_clash_frame_info (NO_PROBE_SMALL_FRAME, true);
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+ else
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+ dump_stack_clash_frame_info (NO_PROBE_NO_FRAME, false);
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return;
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}
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diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
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index f24c5c6e0ac..7c126e4122b 100644
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--- a/gcc/testsuite/lib/target-supports.exp
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+++ b/gcc/testsuite/lib/target-supports.exp
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@@ -5439,6 +5439,12 @@ proc check_effective_target_frame_pointer_for_non_leaf { } {
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if { [istarget aarch*-*-*] } {
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return 1
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}
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+
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+ # Solaris/x86 defaults to -fno-omit-frame-pointer.
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+ if { [istarget i?86-*-solaris*] || [istarget x86_64-*-solaris*] } {
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+ return 1
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+ }
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+
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return 0
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}
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